All-sky atmosphere gravitational wave imager

Abstract

The invention provides an all-sky atmosphere gravitational wave imager which comprises a fisheye lens, a three-lens light path adjustment lens group, an optical filter, an imaging lens and a scientific CCD (Charge Coupled Device) camera, wherein the three-lens light path adjustment lens group comprises a first lens, a second lens and a third lens, the first lens is a plus lens and is arranged close to the focal plane of the fisheye lens, the second lens which is a plus lens and the third lens which is a minus lens are arranged behind the first lens, and the third lenses are matched with the fisheye lens mutually so that light emitted from the third lens meets the angular requirement of the band width of the optical filter on incident light, then passes through the optical filter, the imaging lens sequentially and finally reaches the scientific CCD camera connected with the imaging lens, and thus, the all-sky atmosphere gravitational wave imager realizes the all-sky 180-degree atmosphere gravitational wave imaging by taking OH and O2 airglow radiation as a tracer. The all-sky atmosphere gravitational wave imager not only can realize higher-accuracy gravitational wave activity observation, but also can reduce cost and size and has concise structure and high accuracy.

Description

technical field [0001] The invention relates to an optical imaging instrument for observing atmospheric gravity waves, in particular to an all-sky atmospheric gravity wave imager capable of realizing two-dimensional imaging of the entire sky's atmospheric gravity wave activity level. Background technique [0002] Atmospheric gravity waves will disturb the airglow radiation layer during the upload process, and the observation of atmospheric gravity wave activities can be realized by using atmospheric airglow radiation as a tracer. In the airglow radiation belt of the middle and upper atmosphere, the radiation in the visible light to near-infrared bands is the broadband OH and the narrow-band O2 airglow layer, and the bands are about 750-850nm and 865±2.5nm respectively. Both glow radiation can be used for gravitational wave active imaging observations. [0003] figure 1 is a schematic diagram of the existing all-sky atmospheric gravity wave imager, such as figure 1 As show...

AI Technical Summary

Problems solved by technology

The disadvantages are that it is relatively difficult to purchase a specific type of fisheye lens, the cost of a larger-sized filter is high, and the diameter of the imager is increased, and the design and processing of a specific optical lens is more complicated, so that multi-point observation of atmospheric gravity waves, Imagers are limited in terms of miniaturization and portability

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